cmake: 'add_custom_target' - using 'file' command

Question

I'm trying to create a custom target which should be used to cleaning out the output of my program. Is it possible to do something like this:

    add_custom_target(
        clean_output
        file(REMOVE_RECURSE ${PROJECT_BINARY_DIR}/output)
    )

Answer 1

Try the following:

add_custom_target(
    clean_output
    COMMAND ${CMAKE_COMMAND} -E remove_directory "${PROJECT_BINARY_DIR}/output"
)